Sure, follow this guide until you get to the php portion and then stop.
Make sure you have git installed.
sudo apt-get install git
Then open a bash window and run these commands
cd ~/
git clone https://github.com/jp0550/webCoRE
cd webCoRE
git checkout hubitat-patches
cd dashboard
sudo ln -s `pwd` /var/www/webcore
Now edit the following file to the following
/etc/apache2/sites-available/000-default.conf
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerAdmin webmaster@localhost
DocumentRoot /var/www/webcore/
<Directory "/var/www/webcore">
AllowOverride All
</Directory>
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>
Run the following commands
sudo a2enmod rewrite
sudo service apache2 restart
Use the url for your raspberry pi and it should now show you webcore
http://your-pi-ip
Go to the webcore settings on your hubitat and enable Custom urls.
In the first box put the http address of your hubitat
http://hubitat-ip
In the second box put the http address of your pi
http://pi-ip-address
Hit done and you should be see your local instance of webcore come up when you hit Dashboard on the settings page in hubitat.
I wrote most of this from memory so let me know if you get stuck on something.